Home / 14,785.75-20,401.28-8,496.91

Finding the Fourth Proportional to 14,785.75, 20,401.28 and 8,496.91

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Solution

The fourth proportional to 14,785.75, 20,401.28 and 8,496.91 is: 11,723.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,785.75 : 20,401.28 = 8,496.91 : x
  2. Step 2: Convert to fraction form
    14,785.75/20,401.28 = 8,496.91/x
  3. Step 3: Cross multiply
    14,785.75x = 20,401.28 × 8,496.91
  4. Step 4: Simplify right side
    14,785.75x = 173,347,840.04
  5. Step 5: Solve for x
    x = 173,347,840.04/14,785.75
  6. Step 6: Final answer
    x = 11,723.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.